Lessons through maps and map making
This portfolio is a collection of the skills developed in VIS 2128 taught by Professor Carole Voulgaris.
Map 1: On accessibility in Hong Kong
As a context for the subsequent maps regarding accessibility in Hong Kong, this map gives one an idea of the public housing, schools and population density landscape in the city and how its accounts for the observations in later maps. This map also serves to demonstrate the following skills: * Displaying multiple vector layers on the same map * Calculating and displaying relationships among point and polygon layers based on distance
Maps 2 & 3: Access to transit stops
These map demonstrate: * Calculating and displaying accessibility, based on travel time
Map 4: Pedestrian access to transit tops (Raster layer)
This map demonstrates: * Displaying raster data on a map * Calculating and displaying accessibility, based on travel time
Map 5: Pedestrian access to transit tops (Vector layer)
This map demonstrates: * Converting between raster layers and vector layers * Calculating and displaying accessibility, based on travel time
On ridership in Cambridge
Map 6: Ridership at different time periods
This was the first assignment that introduced map making in R. The skills demonstrated are * Aggregating point data to a layer of polygons
Unique to our group, we needed to geo-reference the data set for ridership in R by joining the subway line shapefile to the ridership csv file.
On access to hospitals for persons with a disability in Suffolk County, MA
Map 7: Interactive map on access to hospitals for persons with a disability in Suffolk County, MA
This interactive map demonstrates the following skills:
- Displaying data on an interactive map
On Reykjavik, 1902 and today
Map 8: Service infrastructure in Reykjavik today with reference to the city in 1902
This map shows the service infrastructure in Reykjavík today as the top layer. The historical 1902 map is the second layer at 50% transparency. It overlays the contemporary map. In this order, the service infrastructure which has sprawled out of old Reykjavík, is denoted by a circle. The various types are differentiated by the color of the circle’s fill. We observe “playgrounds” are the largest group and is distributed across old and new Reykjavík, shedding light onto the possibly playful daily life of Icelandic children and their society’s priority for them.
This map demonstrates:
- Geo-referencing a raster image
On use of social media in green spaces in Jiaxing
Map 9
This map, as others, are part of a group effort, in which we all tried to ensure the codes and data would run. The primary author of this particular map is my group mate Yuanzhao Wang. Yuanzhao, Marina Freitas and I all worked on all the maps (and their codes) produced for this assignment as we attempt to collate our maps and knit. The full assignment can here accessed here
This map demonstrates:
- Aggregating point data to a layer of polygons